#VU47917 Permissions, Privileges, and Access Controls in strapi - CVE-2020-27665

Vulnerability identifier: #VU47917

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-27665

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
strapi
Web applications / CMS

Vendor: strapi.io

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to no admin::hasPermissions restriction for CTB (aka content-type-builder) routes, which leads to security restrictions bypass and privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

strapi: 3.2.0 - 3.2.4

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External links
https://github.com/strapi/strapi/pull/8439
https://github.com/strapi/strapi/releases/tag/v3.2.5

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.